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Dixit S, Parashar J, Dhaked RK, Kumar A, Saxena N. Development and validation of streptavidin-biotin-based double antibody sandwich ELISA for ricin diagnosis. Int Immunopharmacol 2024; 132:111986. [PMID: 38574703 DOI: 10.1016/j.intimp.2024.111986] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2023] [Revised: 03/01/2024] [Accepted: 03/28/2024] [Indexed: 04/06/2024]
Abstract
BACKGROUND Ricin is a potential biowarfare agent. It is a phytotoxin isolated from castor seeds. At present there is no antidote available for ricin poisoning, patients only get supportive treatment based on their symptoms. This highlights the importance of early detection to avoid severity of accidents and reduce the risk factor. Considering this, our study aimed to develop a highly sensitive and specific sandwich ELISA for the detection of ricin. METHODS Ricin was purified from castor seeds. Anti-ricin polyclonal and monoclonal antibodies were generated from rabbit antisera and hybridoma cell (1H6F1) supernatant using a protein A/G column. Antibody titer estimation was done using Indirect ELISA. A streptavidin-biotin-based sandwich ELISA was developed and the limit of detection (LOD), linear range, intra and inter-assay coefficient of variation (CV), and cross-reactivity with other similar toxins were determined. Interference of human plasma samples spiked with ricin was also checked. RESULTS The LOD of the ELISA was found to be 0.45 ng/ml, with a linear range of 0.90-62 ng/ml, intra and inter-assay CV ranged from 3.34 % to 5 % and 5.17 % to 10.80 % respectively. The assay was not cross-reactive with other similar ribosome-inactivating protein (RIP) toxins. Ricin was detected in spiked plasma samples. CONCLUSION The developed assay is highly sensitive and specific for detecting ricin and is not cross-reactive with other similar types of toxins. The assay can detect ricin in spiked plasma samples, so it has the potential to be used for the analysis of clinical samples after ricin poisoning.
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Affiliation(s)
- Shivani Dixit
- Division of Pharmacology & Toxicology, Defence Research Development & Establishment, Defence Research Development Organization, Gwalior, India
| | - Jagrati Parashar
- Division of Pharmacology & Toxicology, Defence Research Development & Establishment, Defence Research Development Organization, Gwalior, India
| | - Ram Kumar Dhaked
- Biotechnology Division, Defence Research Development & Establishment, Defence Research Development Organization, Gwalior, India
| | - Abdhesh Kumar
- Animal Facility Division, Defence Research Development & Establishment, Defence Research Development Organization, Gwalior, India
| | - Nandita Saxena
- Division of Pharmacology & Toxicology, Defence Research Development & Establishment, Defence Research Development Organization, Gwalior, India.
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Wang F, Ye W, He Y, Zhong H, Zhu Y, Han J, Gong X, Tian Y, Wang Y, Wang S, Ji S, Liu H, Yao X. Identification of CBPA as a New Inhibitor of PD-1/PD-L1 Interaction. Int J Mol Sci 2023; 24:ijms24043971. [PMID: 36835382 PMCID: PMC9964281 DOI: 10.3390/ijms24043971] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2022] [Revised: 12/20/2022] [Accepted: 12/27/2022] [Indexed: 02/18/2023] Open
Abstract
Targeting of the PD-1/PD-L1 immunologic checkpoint is believed to have provided a real breakthrough in the field of cancer therapy in recent years. Due to the intrinsic limitations of antibodies, the discovery of small-molecule inhibitors blocking PD-1/PD-L1 interaction has gradually opened valuable new avenues in the past decades. In an effort to discover new PD-L1 small molecular inhibitors, we carried out a structure-based virtual screening strategy to rapidly identify the candidate compounds. Ultimately, CBPA was identified as a PD-L1 inhibitor with a KD value at the micromolar level. It exhibited effective PD-1/PD-L1 blocking activity and T-cell-reinvigoration potency in cell-based assays. CBPA could dose-dependently elevate secretion levels of IFN-γ and TNF-α in primary CD4+ T cells in vitro. Notably, CBPA exhibited significant in vivo antitumor efficacy in two different mouse tumor models (a MC38 colon adenocarcinoma model and a melanoma B16F10 tumor model) without the induction of observable liver or renal toxicity. Moreover, analyses of the CBPA-treated mice further showed remarkably increased levels of tumor-infiltrating CD4+ and CD8+ T cells and cytokine secretion in the tumor microenvironment. A molecular docking study suggested that CBPA embedded relatively well into the hydrophobic cleft formed by dimeric PD-L1, occluding the PD-1 interaction surface of PD-L1. This study suggests that CBPA could work as a hit compound for the further design of potent inhibitors targeting the PD-1/PD-L1 pathway in cancer immunotherapy.
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Affiliation(s)
- Fengling Wang
- College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 730000, China
- Henan International Joint Laboratory for Nuclear Protein Regulation, Cell Signal Transduction Laboratory, School of Basic Medical Sciences, Henan University, Kaifeng 475004, China
| | - Wenling Ye
- Henan International Joint Laboratory for Nuclear Protein Regulation, Cell Signal Transduction Laboratory, School of Basic Medical Sciences, Henan University, Kaifeng 475004, China
| | - Yongxing He
- Ministry of Education Key Laboratory of Cell Activities and Stress Adaptations, School of Life Sciences, Lanzhou University, Lanzhou 730000, China
| | - Haiyang Zhong
- College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 730000, China
| | - Yongchang Zhu
- College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 730000, China
| | - Jianting Han
- College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 730000, China
| | - Xiaoqing Gong
- College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 730000, China
| | - Yanan Tian
- Faculty of Applied Science, Macao Polytechnic University, Macao 999078, China
| | - Yuwei Wang
- College of Pharmacy, Shaanxi University of Chinese Medicine, Xianyang 712046, China
| | - Shuang Wang
- College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 730000, China
| | - Shaoping Ji
- Henan International Joint Laboratory for Nuclear Protein Regulation, Cell Signal Transduction Laboratory, School of Basic Medical Sciences, Henan University, Kaifeng 475004, China
| | - Huanxiang Liu
- Faculty of Applied Science, Macao Polytechnic University, Macao 999078, China
- Correspondence: (H.L.); (X.Y.); Tel.: +853-8599-6874 (H.L.); +86-0931-891-2578 (X.Y.)
| | - Xiaojun Yao
- College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 730000, China
- State Key Laboratory of Quality Research in Chinese Medicine, Macau Institute for Applied Research in Medicine and Health, Macau University of Science and Technology, Macau 999078, China
- Correspondence: (H.L.); (X.Y.); Tel.: +853-8599-6874 (H.L.); +86-0931-891-2578 (X.Y.)
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3
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Bai X, Hu C, Chen L, Wang J, Li Y, Wan W, Jin Z, Li Y, Xin W, Kang L, Jin H, Yang H, Wang J, Gao S. A Self-Driven Microfluidic Chip for Ricin and Abrin Detection. SENSORS 2022; 22:s22093461. [PMID: 35591151 PMCID: PMC9101213 DOI: 10.3390/s22093461] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/28/2022] [Revised: 04/17/2022] [Accepted: 04/28/2022] [Indexed: 12/02/2022]
Abstract
Ricin and abrin are phytotoxins that can be easily used as biowarfare and bioterrorism agents. Therefore, developing a rapid detection method for both toxins is of great significance in the field of biosecurity. In this study, a novel nanoforest silicon microstructure was prepared by the micro-electro-mechanical systems (MEMS) technique; particularly, a novel microfluidic sensor chip with a capillary self-driven function and large surface area was designed. Through binding with the double antibodies sandwich immunoassay, the proposed sensor chip is confirmed to be a candidate for sensing the aforementioned toxins. Compared with conventional immunochromatographic test strips, the proposed sensor demonstrates significantly enhanced sensitivity (≤10 pg/mL for both toxins) and high specificity against the interference derived from juice or milk, while maintaining good linearity in the range of 10–6250 pg/mL. Owing to the silicon nanoforest microstructure and improved homogeneity of the color signal, short detection time (within 15 min) is evidenced for the sensor chip, which would be helpful for the rapid tracking of ricin and abrin for the field of biosecurity.
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Affiliation(s)
- Xuexin Bai
- State Key Laboratory of Pathogen and Biosecurity, Institute of Microbiology and Epidemiology, Academy of Military Medical Sciences, Beijing 100071, China
- School of Basic Medical Sciences, Anhui Medical University, Hefei 230032, China
| | - Chenyi Hu
- State Key Laboratory of Pathogen and Biosecurity, Institute of Microbiology and Epidemiology, Academy of Military Medical Sciences, Beijing 100071, China
| | - Liang Chen
- State Key Laboratory of Pathogen and Biosecurity, Institute of Microbiology and Epidemiology, Academy of Military Medical Sciences, Beijing 100071, China
| | - Jing Wang
- State Key Laboratory of Pathogen and Biosecurity, Institute of Microbiology and Epidemiology, Academy of Military Medical Sciences, Beijing 100071, China
| | - Yanwei Li
- State Key Laboratory of Pathogen and Biosecurity, Institute of Microbiology and Epidemiology, Academy of Military Medical Sciences, Beijing 100071, China
| | - Wei Wan
- State Key Laboratory of Pathogen and Biosecurity, Institute of Microbiology and Epidemiology, Academy of Military Medical Sciences, Beijing 100071, China
| | - Zhiying Jin
- State Key Laboratory of Pathogen and Biosecurity, Institute of Microbiology and Epidemiology, Academy of Military Medical Sciences, Beijing 100071, China
| | - Yue Li
- State Key Laboratory of Pathogen and Biosecurity, Institute of Microbiology and Epidemiology, Academy of Military Medical Sciences, Beijing 100071, China
| | - Wenwen Xin
- State Key Laboratory of Pathogen and Biosecurity, Institute of Microbiology and Epidemiology, Academy of Military Medical Sciences, Beijing 100071, China
| | - Lin Kang
- State Key Laboratory of Pathogen and Biosecurity, Institute of Microbiology and Epidemiology, Academy of Military Medical Sciences, Beijing 100071, China
| | - Han Jin
- Institute of Micro-Nano Science and Technology, School of Electronic Information and Electrical Engineering, Shanghai Jiao Tong University, Shanghai 200240, China
| | - Hao Yang
- State Key Laboratory of Pathogen and Biosecurity, Institute of Microbiology and Epidemiology, Academy of Military Medical Sciences, Beijing 100071, China
| | - Jinglin Wang
- State Key Laboratory of Pathogen and Biosecurity, Institute of Microbiology and Epidemiology, Academy of Military Medical Sciences, Beijing 100071, China
| | - Shan Gao
- State Key Laboratory of Pathogen and Biosecurity, Institute of Microbiology and Epidemiology, Academy of Military Medical Sciences, Beijing 100071, China
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Kandasamy K, Selvaprakash K, Chen YC. Functional magnetic nanoparticle-based affinity probe for MALDI mass spectrometric detection of ricin B. Mikrochim Acta 2021; 188:339. [PMID: 34510288 DOI: 10.1007/s00604-021-04991-y] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2021] [Accepted: 08/17/2021] [Indexed: 11/30/2022]
Abstract
The use of lactosylated Fe3O4 magnetic nanoparticles (MNP@LAC) has been explored as affinity probes against ricin B based on galactose-ricin B binding interactions. Lactose was bound onto the surface of aminated MNPs through the Maillard reaction. The enrichment of ricin B took ~1 h by incubating MNP@LAC with samples under shaking at room temperature, followed by magnetic isolation. The resultant MNP@LAC-ricin B conjugates were characterized by matrix-assisted laser desorption/ionization mass spectrometry (MALDI-MS). The limit of detection toward ricin B was ~3 nM by using the developed method. It was possible to detect the peptides derived from the tryptic digest of trace ricin B (~0.39 nM) enriched by the MNP@LAC probes followed by tryptic digestion and MALDI-MS analysis. The feasibility of using the developed method for detection of ricin B from complex white corn starch samples spiked with trace ricin B was demonstrated.
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Affiliation(s)
- Karthikeyan Kandasamy
- Department of Applied Chemistry, National Chiao Tung University, Hsinchu, 300, Taiwan.,Department of Applied Chemistry, National Yang Ming Chiao Tung University, Hsinchu, 300, Taiwan
| | - Karuppuchamy Selvaprakash
- Department of Applied Chemistry, National Chiao Tung University, Hsinchu, 300, Taiwan.,Department of Applied Chemistry, National Yang Ming Chiao Tung University, Hsinchu, 300, Taiwan
| | - Yu-Chie Chen
- Department of Applied Chemistry, National Chiao Tung University, Hsinchu, 300, Taiwan. .,Department of Applied Chemistry, National Yang Ming Chiao Tung University, Hsinchu, 300, Taiwan.
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5
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Sensitivity Analysis of Single- and Bimetallic Surface Plasmon Resonance Biosensors. SENSORS 2021; 21:s21134348. [PMID: 34202104 PMCID: PMC8271734 DOI: 10.3390/s21134348] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/01/2021] [Revised: 06/19/2021] [Accepted: 06/21/2021] [Indexed: 12/16/2022]
Abstract
Comparative analysis of the sensitivity of two surface plasmon resonance (SPR) biosensors was conducted on a single-metallic Au sensor and bimetallic Ag–Au sensor, using a cathepsin S sensor as an example. Numerically modeled resonance curves of Au and Ag–Au layers, with parameters verified by the results of experimental reflectance measurement of real-life systems, were used for the analysis of these sensors. Mutual relationships were determined between ∂Y/∂n components of sensitivity of the Y signal in the SPR measurement to change the refractive index n of the near-surface sensing layer and ∂n/∂c sensitivity of refractive index n to change the analyte’s concentration, c, for both types of sensors. Obtained results were related to experimentally determined calibration curves of both sensors. A characteristic feature arising from the comparison of calibration curves is the similar level of Au and Ag–Au biosensors’ sensitivity in the linear range, where the signal of the AgAu sensor is at a level several times greater. It was shown that the influence of sensing surface morphology on the ∂n/∂c sensitivity component had to be incorporated to explain the features of calibration curves of sensors. The shape of the sensory surface relief was proposed to increase the sensor sensitivity at low analyte concentrations.
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Camarca A, Varriale A, Capo A, Pennacchio A, Calabrese A, Giannattasio C, Murillo Almuzara C, D’Auria S, Staiano M. Emergent Biosensing Technologies Based on Fluorescence Spectroscopy and Surface Plasmon Resonance. SENSORS (BASEL, SWITZERLAND) 2021; 21:906. [PMID: 33572812 PMCID: PMC7866296 DOI: 10.3390/s21030906] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/24/2020] [Revised: 01/22/2021] [Accepted: 01/25/2021] [Indexed: 12/23/2022]
Abstract
The purpose of this work is to provide an exhaustive overview of the emerging biosensor technologies for the detection of analytes of interest for food, environment, security, and health. Over the years, biosensors have acquired increasing importance in a wide range of applications due to synergistic studies of various scientific disciplines, determining their great commercial potential and revealing how nanotechnology and biotechnology can be strictly connected. In the present scenario, biosensors have increased their detection limit and sensitivity unthinkable until a few years ago. The most widely used biosensors are optical-based devices such as surface plasmon resonance (SPR)-based biosensors and fluorescence-based biosensors. Here, we will review them by highlighting how the progress in their design and development could impact our daily life.
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Affiliation(s)
- Alessandra Camarca
- Institute of Food Science, CNR Italy, 83100 Avellino, Italy; (A.C.); (A.V.); (A.C.); (A.P.); (A.C.); (C.G.); (C.M.A.); (M.S.)
| | - Antonio Varriale
- Institute of Food Science, CNR Italy, 83100 Avellino, Italy; (A.C.); (A.V.); (A.C.); (A.P.); (A.C.); (C.G.); (C.M.A.); (M.S.)
- URT-ISA at Department of Biology, University of Naples Federico II, 80126 Napoli, Italy
| | - Alessandro Capo
- Institute of Food Science, CNR Italy, 83100 Avellino, Italy; (A.C.); (A.V.); (A.C.); (A.P.); (A.C.); (C.G.); (C.M.A.); (M.S.)
| | - Angela Pennacchio
- Institute of Food Science, CNR Italy, 83100 Avellino, Italy; (A.C.); (A.V.); (A.C.); (A.P.); (A.C.); (C.G.); (C.M.A.); (M.S.)
| | - Alessia Calabrese
- Institute of Food Science, CNR Italy, 83100 Avellino, Italy; (A.C.); (A.V.); (A.C.); (A.P.); (A.C.); (C.G.); (C.M.A.); (M.S.)
| | - Cristina Giannattasio
- Institute of Food Science, CNR Italy, 83100 Avellino, Italy; (A.C.); (A.V.); (A.C.); (A.P.); (A.C.); (C.G.); (C.M.A.); (M.S.)
| | - Carlos Murillo Almuzara
- Institute of Food Science, CNR Italy, 83100 Avellino, Italy; (A.C.); (A.V.); (A.C.); (A.P.); (A.C.); (C.G.); (C.M.A.); (M.S.)
| | - Sabato D’Auria
- Institute of Food Science, CNR Italy, 83100 Avellino, Italy; (A.C.); (A.V.); (A.C.); (A.P.); (A.C.); (C.G.); (C.M.A.); (M.S.)
| | - Maria Staiano
- Institute of Food Science, CNR Italy, 83100 Avellino, Italy; (A.C.); (A.V.); (A.C.); (A.P.); (A.C.); (C.G.); (C.M.A.); (M.S.)
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Etxebarria-Elezgarai J, Mowat M, Lopez E, Rodríguez C, Olaetxea I, Seifert A. Gaussian Beam Shaping and Multivariate Analysis in Plasmonic Sensing. Anal Chem 2020; 92:16236-16244. [DOI: 10.1021/acs.analchem.0c04105] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
| | - Miriam Mowat
- CIC nanoGUNE BRTA, Tolosa Hiribidea 76, Donostia-San Sebastián 20018, Spain
| | - Eneko Lopez
- CIC nanoGUNE BRTA, Tolosa Hiribidea 76, Donostia-San Sebastián 20018, Spain
| | - Carlos Rodríguez
- CIC nanoGUNE BRTA, Tolosa Hiribidea 76, Donostia-San Sebastián 20018, Spain
| | - Ion Olaetxea
- CIC nanoGUNE BRTA, Tolosa Hiribidea 76, Donostia-San Sebastián 20018, Spain
| | - Andreas Seifert
- CIC nanoGUNE BRTA, Tolosa Hiribidea 76, Donostia-San Sebastián 20018, Spain
- IKERBASQUE, Basque Foundation for Science, Euskadi Plaza 5, Bilbao 48009, Spain
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8
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Multiplex Immunoassay Techniques for On-Site Detection of Security Sensitive Toxins. Toxins (Basel) 2020; 12:toxins12110727. [PMID: 33233770 PMCID: PMC7699850 DOI: 10.3390/toxins12110727] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2020] [Revised: 11/12/2020] [Accepted: 11/16/2020] [Indexed: 12/12/2022] Open
Abstract
Biological toxins are a heterogeneous group of high molecular as well as low molecular weight toxins produced by living organisms. Due to their physical and logistical properties, biological toxins are very attractive to terrorists for use in acts of bioterrorism. Therefore, among the group of biological toxins, several are categorized as security relevant, e.g., botulinum neurotoxins, staphylococcal enterotoxins, abrin, ricin or saxitoxin. Additionally, several security sensitive toxins also play a major role in natural food poisoning outbreaks. For a prompt response to a potential bioterrorist attack using biological toxins, first responders need reliable, easy-to-use and highly sensitive methodologies for on-site detection of the causative agent. Therefore, the aim of this review is to present on-site immunoassay platforms for multiplex detection of biological toxins. Furthermore, we introduce several commercially available detection technologies specialized for mobile or on-site identification of security sensitive toxins.
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Luo J, Chen C, Li Q. White blood cell counting at point-of-care testing: A review. Electrophoresis 2020; 41:1450-1468. [PMID: 32356920 DOI: 10.1002/elps.202000029] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2019] [Revised: 04/11/2020] [Accepted: 04/20/2020] [Indexed: 11/12/2022]
Abstract
White blood cells, which are also called leukocytes, are found in the immune system that are involved in protecting the body against infections and foreign invaders. Conventional methods of leukocyte analysis provide valuable and accurate information to medical specialists. Analyzing and diagnosing of a disease requires a combination of multiple biomarkers, in some cases, however, such as personal health care, this will occupy some medical resources and causes unnecessary consumption. Traditional method (such as flow cytometer) for WBC counting is time and labor consuming. Compared to gold standard (flow-based fraction/micropore filtration) or improved filtration methods for WBC counting, this is still a lengthy and time consuming process and can lead to membrane fouling due to the rapid accumulation of biological materials. Therefore, the analysis of WBC counts requires more compact and efficient equipment. The microfluidic technologies, powered by different field (force, thermal, acoustic, optical, magnetic) and other methods for leukocyte counting and analysis, are much cost-efficient and can be used in in-home or in resource-limited areas to achieve Point-of-Care (POC). In this review, we highlight the mainstream devices that have been commercialized and extensively employed for patients for WBC counting, Next, we present some recent development with regards to leucocyte counting (mainly microfluidic technologies) and comment on their relative merits. We aim to focus and discuss the possibility of achieving POC and help researchers to tackle individual challenges accordingly. Finally, we offer some technologies in addition to previous detection devices, such as image recognition technology and cloud computing, which we believe have great potential to further promote real-time detection and improve medical diagnosis.
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Affiliation(s)
- Jianke Luo
- College of Glasgow, University of Electronic Science and Technology of China, Chengdu, P. R. China
| | - Chunmei Chen
- Department of Laboratory Medicine, Health Industry Co., Ltd of the Fifth Xiangya Hospital, Hunan, P. R. China.,The Second Xiangya Hospital Central South University, Changsha, P. R. China
| | - Qing Li
- Department of Anesthesiology, The First Affiliated Hospital of Chongqing Medical University, Chongqing, P. R. China
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10
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Masson JF. Portable and field-deployed surface plasmon resonance and plasmonic sensors. Analyst 2020; 145:3776-3800. [PMID: 32374303 DOI: 10.1039/d0an00316f] [Citation(s) in RCA: 61] [Impact Index Per Article: 15.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Plasmonic sensors are ideally suited for the design of small, integrated, and portable devices that can be employed in situ for the detection of analytes relevant to environmental sciences, clinical diagnostics, infectious diseases, food, and industrial applications. To successfully deploy plasmonic sensors, scaled-down analytical devices based on surface plasmon resonance (SPR) and localized surface plasmon resonance (LSPR) must integrate optics, plasmonic materials, surface chemistry, fluidics, detectors and data processing in a functional instrument with a small footprint. The field has significantly progressed from the implementation of the various components in specifically designed prism-based instruments to the use of nanomaterials, optical fibers and smartphones to yield increasingly portable devices, which have been shown for a number of applications in the laboratory and deployed on site for environmental, biomedical/clinical, and food applications. A roadmap to deploy plasmonic sensors is provided by reviewing the current successes and by laying out the directions the field is currently taking to increase the use of field-deployed plasmonic sensors at the point-of-care, in the environment and in industries.
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Affiliation(s)
- Jean-Francois Masson
- Departement de chimie, Centre Québécois sur les Matériaux Fonctionnels (CQMF) and Regroupement Québécois sur les Matériaux de Pointe (RQMP), Université de Montréal, CP 6128 Succ. Centre-Ville, Montreal, QC, CanadaH3C 3J7.
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11
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Lednický T, Bonyár A. Large Scale Fabrication of Ordered Gold Nanoparticle-Epoxy Surface Nanocomposites and Their Application as Label-Free Plasmonic DNA Biosensors. ACS APPLIED MATERIALS & INTERFACES 2020; 12:4804-4814. [PMID: 31904921 PMCID: PMC7307838 DOI: 10.1021/acsami.9b20907] [Citation(s) in RCA: 28] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/04/2023]
Abstract
A robust and scalable technology to fabricate ordered gold nanoparticle arrangements on epoxy substrates is presented. The nanoparticles are synthesized by solid-state dewetting on nanobowled aluminum templates, which are prepared by the selective chemical etching of porous anodic alumina (PAA) grown on an aluminum sheet with controlled anodic oxidation. This flexible fabrication technology provides proper control over the nanoparticle size, shape, and interparticle distance over a large surface area (several cm2), which enables the fine-tuning and optimization of their plasmonic absorption spectra for LSPR and SERS applications between 535 and 625 nm. The nanoparticles are transferred to the surface of epoxy substrates, which are subsequently selectively etched. The resulting nanomushrooms arrangements consist of ordered epoxy nanopillars with flat, disk-shaped nanoparticles on top, and their bulk refractive index sensitivity is between 83 and 108 nm RIU-1. Label-free DNA detection is successfully demonstrated with the sensors by using a 20 base pair long specific DNA sequence from the parasite Giardia lamblia. A red-shift of 6.6 nm in the LSPR absorbance spectrum was detected after the 2 h hybridization with 1 μM target DNA, and the achievable LOD was around 5 nM. The reported plasmonic sensor is one of the first surface AuNP/polymer nanocomposites ever reported for the successful label-free detection of DNA.
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Affiliation(s)
- Tomáš Lednický
- CEITEC - Central
European Institute of Technology, Brno University
of Technology, Brno 612 00, Czech Republic
| | - Attila Bonyár
- Department of Electronics Technology, Budapest
University of Technology and Economics, Budapest H-1111, Hungary
- E-mail: (A.B.)
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12
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Kotlarek D, Vorobii M, Ogieglo W, Knoll W, Rodriguez-Emmenegger C, Dostálek J. Compact Grating-Coupled Biosensor for the Analysis of Thrombin. ACS Sens 2019; 4:2109-2116. [PMID: 31364363 DOI: 10.1021/acssensors.9b00827] [Citation(s) in RCA: 30] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
A compact optical biosensor for direct detection of thrombin in human blood plasma (HBP) is reported. This biosensor platform is based on wavelength spectroscopy of diffraction-coupled surface plasmons on a chip with a periodically corrugated gold film that carries an antifouling thin polymer layer consisting of poly[(N-(2-hydroxypropyl)methacrylamide)-co-(carboxybetaine methacrylamide)] (poly(HPMA-co-CBMAA)) brushes. This surface architecture provides superior resistance to nonspecific and irreversible adsorption of abundant compounds in the analyzed HBP samples in comparison to standard surface modifications. The carboxylate groups along the polymer brushes were exploited for the covalent immobilization of aptamer ligands. These ligands were selected to specifically capture the target thrombin analyte from the analyzed HBP sample in a way that does not activate the coagulatory process at the biosensor surface with poly(HPMA-co-CBMAA) brushes. Direct label-free analysis of thrombin in the medically relevant concentration range (1-20 nM) is demonstrated without the need for diluting the HBP samples or using additional steps for signal enhancement. The reported platform constitutes the first step toward a portable and sensitive point-of-care device for direct detection of thrombin in human blood.
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Affiliation(s)
- Daria Kotlarek
- Biosensor Technologies, AIT-Austrian Institute of Technology GmbH, Konrad-Lorenz-Straße 24, 3430 Tulln an der Donau, Austria
| | - Mariia Vorobii
- DWI − Leibniz Institute for Interactive Materials and Institute of Technical and Macromolecular Chemistry, RWTH Aachen University, Forckenbeckstraße 50, 52074 Aachen, Germany
| | - Wojciech Ogieglo
- DWI − Leibniz Institute for Interactive Materials and Institute of Technical and Macromolecular Chemistry, RWTH Aachen University, Forckenbeckstraße 50, 52074 Aachen, Germany
| | - Wolfgang Knoll
- Biosensor Technologies, AIT-Austrian Institute of Technology GmbH, Konrad-Lorenz-Straße 24, 3430 Tulln an der Donau, Austria
| | - Cesar Rodriguez-Emmenegger
- DWI − Leibniz Institute for Interactive Materials and Institute of Technical and Macromolecular Chemistry, RWTH Aachen University, Forckenbeckstraße 50, 52074 Aachen, Germany
| | - Jakub Dostálek
- Biosensor Technologies, AIT-Austrian Institute of Technology GmbH, Konrad-Lorenz-Straße 24, 3430 Tulln an der Donau, Austria
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13
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Plasmonics for Biosensing. MATERIALS 2019; 12:ma12091411. [PMID: 31052240 PMCID: PMC6539671 DOI: 10.3390/ma12091411] [Citation(s) in RCA: 33] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/30/2019] [Revised: 04/19/2019] [Accepted: 04/24/2019] [Indexed: 12/14/2022]
Abstract
Techniques based on plasmonic resonance can provide label-free, signal enhanced, and real-time sensing means for bioparticles and bioprocesses at the molecular level. With the development in nanofabrication and material science, plasmonics based on synthesized nanoparticles and manufactured nano-patterns in thin films have been prosperously explored. In this short review, resonance modes, materials, and hybrid functions by simultaneously using electrical conductivity for plasmonic biosensing techniques are exclusively reviewed for designs containing nanovoids in thin films. This type of plasmonic biosensors provide prominent potential to achieve integrated lab-on-a-chip which is capable of transporting and detecting minute of multiple bio-analytes with extremely high sensitivity, selectivity, multi-channel and dynamic monitoring for the next generation of point-of-care devices.
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14
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Walper SA, Lasarte Aragonés G, Sapsford KE, Brown CW, Rowland CE, Breger JC, Medintz IL. Detecting Biothreat Agents: From Current Diagnostics to Developing Sensor Technologies. ACS Sens 2018; 3:1894-2024. [PMID: 30080029 DOI: 10.1021/acssensors.8b00420] [Citation(s) in RCA: 85] [Impact Index Per Article: 14.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Although a fundamental understanding of the pathogenicity of most biothreat agents has been elucidated and available treatments have increased substantially over the past decades, they still represent a significant public health threat in this age of (bio)terrorism, indiscriminate warfare, pollution, climate change, unchecked population growth, and globalization. The key step to almost all prevention, protection, prophylaxis, post-exposure treatment, and mitigation of any bioagent is early detection. Here, we review available methods for detecting bioagents including pathogenic bacteria and viruses along with their toxins. An introduction placing this subject in the historical context of previous naturally occurring outbreaks and efforts to weaponize selected agents is first provided along with definitions and relevant considerations. An overview of the detection technologies that find use in this endeavor along with how they provide data or transduce signal within a sensing configuration follows. Current "gold" standards for biothreat detection/diagnostics along with a listing of relevant FDA approved in vitro diagnostic devices is then discussed to provide an overview of the current state of the art. Given the 2014 outbreak of Ebola virus in Western Africa and the recent 2016 spread of Zika virus in the Americas, discussion of what constitutes a public health emergency and how new in vitro diagnostic devices are authorized for emergency use in the U.S. are also included. The majority of the Review is then subdivided around the sensing of bacterial, viral, and toxin biothreats with each including an overview of the major agents in that class, a detailed cross-section of different sensing methods in development based on assay format or analytical technique, and some discussion of related microfluidic lab-on-a-chip/point-of-care devices. Finally, an outlook is given on how this field will develop from the perspective of the biosensing technology itself and the new emerging threats they may face.
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Affiliation(s)
- Scott A. Walper
- Center for Bio/Molecular Science and Engineering, Code 6900, U.S. Naval Research Laboratory, Washington, D.C. 20375, United States
| | - Guillermo Lasarte Aragonés
- Center for Bio/Molecular Science and Engineering, Code 6900, U.S. Naval Research Laboratory, Washington, D.C. 20375, United States
- College of Science, George Mason University Fairfax, Virginia 22030, United States
| | - Kim E. Sapsford
- OMPT/CDRH/OIR/DMD Bacterial Respiratory and Medical Countermeasures Branch, U.S. Food and Drug Administration, Silver Spring, Maryland 20993, United States
| | - Carl W. Brown
- Center for Bio/Molecular Science and Engineering, Code 6900, U.S. Naval Research Laboratory, Washington, D.C. 20375, United States
- College of Science, George Mason University Fairfax, Virginia 22030, United States
| | - Clare E. Rowland
- Center for Bio/Molecular Science and Engineering, Code 6900, U.S. Naval Research Laboratory, Washington, D.C. 20375, United States
- National Research Council, Washington, D.C. 20036, United States
| | - Joyce C. Breger
- Center for Bio/Molecular Science and Engineering, Code 6900, U.S. Naval Research Laboratory, Washington, D.C. 20375, United States
| | - Igor L. Medintz
- Center for Bio/Molecular Science and Engineering, Code 6900, U.S. Naval Research Laboratory, Washington, D.C. 20375, United States
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15
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Discovery of small molecules binding to the normal conformation of prion by combining virtual screening and multiple biological activity evaluation methods. J Comput Aided Mol Des 2017; 31:1053-1062. [PMID: 29159521 DOI: 10.1007/s10822-017-0086-6] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2017] [Accepted: 11/15/2017] [Indexed: 11/27/2022]
Abstract
Conformational conversion of the normal cellular prion protein, PrPC, into the misfolded isoform, PrPSc, is considered to be a central event in the development of fatal neurodegenerative diseases. Stabilization of prion protein at the normal cellular form (PrPC) with small molecules is a rational and efficient strategy for treatment of prion related diseases. However, few compounds have been identified as potent prion inhibitors by binding to the normal conformation of prion. In this work, to rational screening of inhibitors capable of stabilizing cellular form of prion protein, multiple approaches combining docking-based virtual screening, steady-state fluorescence quenching, surface plasmon resonance and thioflavin T fluorescence assay were used to discover new compounds interrupting PrPC to PrPSc conversion. Compound 3253-0207 that can bind to PrPC with micromolar affinity and inhibit prion fibrillation was identified from small molecule databases. Molecular dynamics simulation indicated that compound 3253-0207 can bind to the hotspot residues in the binding pocket composed by β1, β2 and α2, which are significant structure moieties in conversion from PrPC to PrPSc.
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16
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Determination of ricin intoxication in biological samples by monitoring depurinated 28S rRNA in a unique reverse transcription-ligase-polymerase chain reaction assay. Forensic Toxicol 2017. [DOI: 10.1007/s11419-017-0377-6] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
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17
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Abramyan TM, Hyde-Volpe DL, Stuart SJ, Latour RA. Application of advanced sampling and analysis methods to predict the structure of adsorbed protein on a material surface. Biointerphases 2017; 12:02D409. [PMID: 28514864 PMCID: PMC5435533 DOI: 10.1116/1.4983274] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2017] [Revised: 04/27/2017] [Accepted: 04/28/2017] [Indexed: 01/08/2023] Open
Abstract
The use of standard molecular dynamics simulation methods to predict the interactions of a protein with a material surface have the inherent limitations of lacking the ability to determine the most likely conformations and orientations of the adsorbed protein on the surface and to determine the level of convergence attained by the simulation. In addition, standard mixing rules are typically applied to combine the nonbonded force field parameters of the solution and solid phases the system to represent interfacial behavior without validation. As a means to circumvent these problems, the authors demonstrate the application of an efficient advanced sampling method (TIGER2A) for the simulation of the adsorption of hen egg-white lysozyme on a crystalline (110) high-density polyethylene surface plane. Simulations are conducted to generate a Boltzmann-weighted ensemble of sampled states using force field parameters that were validated to represent interfacial behavior for this system. The resulting ensembles of sampled states were then analyzed using an in-house-developed cluster analysis method to predict the most probable orientations and conformations of the protein on the surface based on the amount of sampling performed, from which free energy differences between the adsorbed states were able to be calculated. In addition, by conducting two independent sets of TIGER2A simulations combined with cluster analyses, the authors demonstrate a method to estimate the degree of convergence achieved for a given amount of sampling. The results from these simulations demonstrate that these methods enable the most probable orientations and conformations of an adsorbed protein to be predicted and that the use of our validated interfacial force field parameter set provides closer agreement to available experimental results compared to using standard CHARMM force field parameterization to represent molecular behavior at the interface.
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Affiliation(s)
- Tigran M Abramyan
- Department of Bioengineering, Clemson University, 501 Rhodes Engineering Research Center, Clemson, South Carolina 29634
| | - David L Hyde-Volpe
- Department of Chemistry, 369 Hunter Laboratories, Clemson University, Clemson, South Carolina 29634
| | - Steven J Stuart
- Department of Chemistry, 369 Hunter Laboratories, Clemson University, Clemson, South Carolina 29634
| | - Robert A Latour
- Department of Bioengineering, Clemson University, 501 Rhodes Engineering Research Center, Clemson, South Carolina 29634
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18
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Li CH, Xiao X, Tao J, Wang DM, Huang CZ, Zhen SJ. A graphene oxide-based strand displacement amplification platform for ricin detection using aptamer as recognition element. Biosens Bioelectron 2017; 91:149-154. [PMID: 28006682 DOI: 10.1016/j.bios.2016.12.010] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2016] [Revised: 11/24/2016] [Accepted: 12/05/2016] [Indexed: 12/21/2022]
Abstract
The toxic plant protein ricin is a potential agent for criminal or bioterrorist attacks due to the wide availability and relative ease of preparation. Herein, we developed a novel strategy for the detection of ricin B-chain (RTB) based on isothermal strand-displacement polymerase reaction (ISDPR) by using aptamer as a recognition element and graphene oxide (GO) as a low background platform. In this method, ricin-binding aptamer (RBA) hybridized with a short blocker firstly, and then was immobilized on the surface of streptavidin-coated magnetic beads (MBs). The addition of RTB could release the blocker, which could hybridize with the dye-modified hairpin probe and trigger the ISDPR, resulting in high fluorescence intensity. In the absence of RTB, however, the fluorescence of the dye could be quenched strongly by GO, resulting in the extremely low background signal. Thus, RTB could be sensitively detected by the significantly increased fluorescence signal. The linear range of the current analytical system was from 0.75μg/mL to 100μg/mL and the limit of detection (3σ) was 0.6μg/mL. This method has been successfully utilized for the detection of both the RTB and the entire ricin toxin in real samples, and it could be generalized to any kind of target detection based on an appropriate aptamer.
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Affiliation(s)
- Chun Hong Li
- Key Laboratory of Luminescent and Real-Time Analytical Chemistry (Southwest University), Ministry of Education, College of Chemistry and Chemical Engineering, Southwest University, 400715 Chongqing, PR China
| | - Xue Xiao
- Key Laboratory of Luminescent and Real-Time Analytical Chemistry (Southwest University), Ministry of Education, College of Chemistry and Chemical Engineering, Southwest University, 400715 Chongqing, PR China
| | - Jing Tao
- Key Laboratory of Luminescent and Real-Time Analytical Chemistry (Southwest University), Ministry of Education, College of Chemistry and Chemical Engineering, Southwest University, 400715 Chongqing, PR China
| | - Dong Mei Wang
- Key Laboratory of Luminescent and Real-Time Analytical Chemistry (Southwest University), Ministry of Education, College of Chemistry and Chemical Engineering, Southwest University, 400715 Chongqing, PR China
| | - Cheng Zhi Huang
- Key Laboratory of Luminescent and Real-Time Analytical Chemistry (Southwest University), Ministry of Education, College of Chemistry and Chemical Engineering, Southwest University, 400715 Chongqing, PR China; College of Pharmaceutical Sciences, Southwest University, 400715 Chongqing, PR China.
| | - Shu Jun Zhen
- Key Laboratory of Luminescent and Real-Time Analytical Chemistry (Southwest University), Ministry of Education, College of Chemistry and Chemical Engineering, Southwest University, 400715 Chongqing, PR China.
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19
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Fan JR, Zhu J, Wu WG, Huang Y. Plasmonic Metasurfaces Based on Nanopin-Cavity Resonator for Quantitative Colorimetric Ricin Sensing. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2017; 13:1601710. [PMID: 27709785 DOI: 10.1002/smll.201601710] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/20/2016] [Revised: 08/27/2016] [Indexed: 06/06/2023]
Abstract
In view of the toxic potential of a bioweapon threat, rapid visual recognition and sensing of ricin has been of considerable interest while remaining a challenging task up to date. In this study, a gold nanopin-based colorimetric sensor is developed realizing a multicolor variation for ricin qualitative recognition and analysis. It is revealed that such plasmonic metasurfaces based on nanopin-cavity resonator exhibit reflective color appearance, due to the excitation of standing-wave resonances of narrow bandwidth in visible region. This clear color variation is a consequence of the reflective color mixing defined by different resonant wavelengths. In addition, the colored metasurfaces appear sharp color difference in a narrow refractive index range, which makes them especially well-suited for sensing applications. Therefore, this antibody-functionalized nanopin-cavity biosensor features high sensitivity and fast response, allowing for visual quantitative ricin detection within the range of 10-120 ng mL-1 (0.15 × 10-9 -1.8 × 10-9 m), a limit of detection of 10 ng mL-1 , and the typical measurement time of less than 10 min. The on-chip integration of such nanopin metasurfaces to portable colorimetric microfluidic device may be envisaged for the quantitative studies of a variety of biochemical molecules.
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Affiliation(s)
- Jiao-Rong Fan
- National Key Laboratory of Science and Technology on Micro/Nano Fabrication, Institute of Microelectronics, Peking University, Beijing, 100871, P. R. China
- Innovation Center for MicroNanoelectronics and Integrated System, Beijing, 100871, P. R. China
| | - Jia Zhu
- National Key Laboratory of Science and Technology on Micro/Nano Fabrication, Institute of Microelectronics, Peking University, Beijing, 100871, P. R. China
- Innovation Center for MicroNanoelectronics and Integrated System, Beijing, 100871, P. R. China
| | - Wen-Gang Wu
- National Key Laboratory of Science and Technology on Micro/Nano Fabrication, Institute of Microelectronics, Peking University, Beijing, 100871, P. R. China
- Innovation Center for MicroNanoelectronics and Integrated System, Beijing, 100871, P. R. China
| | - Yun Huang
- National Key Laboratory of Science and Technology on Micro/Nano Fabrication, Institute of Microelectronics, Peking University, Beijing, 100871, P. R. China
- Innovation Center for MicroNanoelectronics and Integrated System, Beijing, 100871, P. R. China
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20
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Zhang R, Cai X, Feng G, Liu B. Real-time naked-eye multiplex detection of toxins and bacteria using AIEgens with the assistance of graphene oxide. Faraday Discuss 2016; 196:363-375. [PMID: 27918604 DOI: 10.1039/c6fd00169f] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Toxins and bacteria in water or food pose a threat to human life and could potentially be exploited for bioterrorism. Real-time naked-eye detection of these contaminants is highly desirable to provide a direct and simple analytical method and address the challenges of the existing strategies. Using the detection of ricin and B. subtilis as an example, a naked-eye multiplex detection model is established. In this work, a green fluorogen with aggregation-induced emission (AIE) characteristics was encapsulated in silica nanoshells. The resulting green AIE nanoparticles (NPs) were further functionalized with ricin binding aptamers (RBA), which were used together with graphene oxide (GO) to provide a fluorescence turn-on approach recognizable by naked eye for the specific sensing of ricin. The platform is compatible with a red emissive fluorescent light-up probe (AIE-2Van) for B. subtilis detection. The success of the multiplex is validated by different colours, that is, green for ricin and red for B. subtilis, which are clearly recognizable by naked eye in the same solution.
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Affiliation(s)
- Ruoyu Zhang
- Department of Chemical and Biomolecular Engineering, National University of Singapore, 4 Engineering Drive 4, Singapore 117585.
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21
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Molecular Plasmonics: From Molecular-Scale Measurements and Control to Applications. ACTA ACUST UNITED AC 2016. [DOI: 10.1021/bk-2016-1224.ch002] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/13/2023]
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22
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Exonuclease III-assisted graphene oxide amplified fluorescence anisotropy strategy for ricin detection. Biosens Bioelectron 2016; 85:822-827. [PMID: 27295569 DOI: 10.1016/j.bios.2016.05.091] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2016] [Revised: 05/23/2016] [Accepted: 05/30/2016] [Indexed: 11/23/2022]
Abstract
Graphene oxide (GO) is an excellent fluorescence anisotropy (FA) amplifier. However, in the conventional GO amplified FA strategy, one target can only induce the FA change of one fluorophore on probe, which limits the detection sensitivity. Herein, we developed an exonuclease III (Exo III) aided GO amplified FA strategy by using aptamer as an recognition element and ricin B-chain as a proof-of-concept target. The aptamer was hybridized with a blocker sequence and linked onto the surface of magnetic beads (MBs). Upon the addition of ricin B-chain, blocker was released from the surface of MBs and hybridized with the dye-modified probe DNA on the surface of GO through the toehold-mediated strand exchange reaction. The formed blocker-probe DNA duplex triggered the Exo III-assisted cyclic signal amplification by repeating the hybridization and digestion of probe DNA, liberating the fluorophore with several nucleotides (low FA value). Thus, ricin B-chain could be sensitively detected by the significantly decreased FA. The linear range was from 1.0μg/mL to 13.3μg/mL and the limit of detection (LOD) was 400ng/mL. This method improved the sensitivity of FA assay and it could be generalized to any kind of target detection based on the use of an appropriate aptamer.
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23
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Perera C, Vernon K, Cheng E, Sathian J, Jaatinen E, Davis T. Highly compact refractive index sensor based on stripe waveguides for lab-on-a-chip sensing applications. BEILSTEIN JOURNAL OF NANOTECHNOLOGY 2016; 7:751-757. [PMID: 27335763 PMCID: PMC4901982 DOI: 10.3762/bjnano.7.66] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 02/11/2016] [Accepted: 05/12/2016] [Indexed: 06/06/2023]
Abstract
In this paper we report the design and experimental realisation of a novel refractive index sensor based on coupling between three nanoscale stripe waveguides. The sensor is highly compact and designed to operate at a single wavelength. We demonstrate that the sensor exhibits linear response with a resolution of 6 × 10(-4) RIU (refractive index unit) for a change in relative output intensity of 1%. Authors expect that the outcome of this paper will prove beneficial in highly compact, label-free and highly sensitive refractive index analysis.
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Affiliation(s)
- Chamanei Perera
- Science and Engineering Faculty, Queensland University of Technology, Brisbane 4001, Queensland, Australia
| | - Kristy Vernon
- Science and Engineering Faculty, Queensland University of Technology, Brisbane 4001, Queensland, Australia
| | - Elliot Cheng
- Australian National Nanofabrication Facility QLD node, University of Queensland, St Lucia 4072, Queensland, Australia
| | - Juna Sathian
- Department of Materials, Imperial College, London SW7 2AZ, UK
| | - Esa Jaatinen
- Science and Engineering Faculty, Queensland University of Technology, Brisbane 4001, Queensland, Australia
| | - Timothy Davis
- School of Physics, University of Melbourne, Parkville 3010, Victoria, Australia
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24
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Stern D, Pauly D, Zydek M, Müller C, Avondet MA, Worbs S, Lisdat F, Dorner MB, Dorner BG. Simultaneous differentiation and quantification of ricin and agglutinin by an antibody-sandwich surface plasmon resonance sensor. Biosens Bioelectron 2016; 78:111-117. [DOI: 10.1016/j.bios.2015.11.020] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2015] [Revised: 10/23/2015] [Accepted: 11/08/2015] [Indexed: 01/26/2023]
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25
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Microfluidics Integrated Biosensors: A Leading Technology towards Lab-on-a-Chip and Sensing Applications. SENSORS 2015; 15:30011-31. [PMID: 26633409 PMCID: PMC4721704 DOI: 10.3390/s151229783] [Citation(s) in RCA: 223] [Impact Index Per Article: 24.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/22/2015] [Revised: 09/16/2015] [Accepted: 11/02/2015] [Indexed: 12/13/2022]
Abstract
A biosensor can be defined as a compact analytical device or unit incorporating a biological or biologically derived sensitive recognition element immobilized on a physicochemical transducer to measure one or more analytes. Microfluidic systems, on the other hand, provide throughput processing, enhance transport for controlling the flow conditions, increase the mixing rate of different reagents, reduce sample and reagents volume (down to nanoliter), increase sensitivity of detection, and utilize the same platform for both sample preparation and detection. In view of these advantages, the integration of microfluidic and biosensor technologies provides the ability to merge chemical and biological components into a single platform and offers new opportunities for future biosensing applications including portability, disposability, real-time detection, unprecedented accuracies, and simultaneous analysis of different analytes in a single device. This review aims at representing advances and achievements in the field of microfluidic-based biosensing. The review also presents examples extracted from the literature to demonstrate the advantages of merging microfluidic and biosensing technologies and illustrate the versatility that such integration promises in the future biosensing for emerging areas of biological engineering, biomedical studies, point-of-care diagnostics, environmental monitoring, and precision agriculture.
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26
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Diakite MLY, Rollin J, Jary D, Berthier J, Mourton-Gilles C, Sauvaire D, Philippe C, Delapierre G, Gidrol X. Point-of-care diagnostics for ricin exposure. LAB ON A CHIP 2015; 15:2308-2317. [PMID: 25892365 DOI: 10.1039/c5lc00178a] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
A long-sought milestone in the defense against bioterrorism is the development of rapid, simple, and near-patient assays for diagnostic and theranostic purposes. Here, we present a powerful test based on a host response to a biological weapon agent, namely the ricin toxin. A signature for exposure to ricin was extracted and characterized in mice and then integrated into a plastic microfluidic cartridge. This enabled early diagnosis of exposure to ricin in mice using a drop of whole blood in less than 1 h and 30 min. The cartridge stores the reagents and implements all of the steps of the analysis, including mRNA extraction from a drop of blood, followed by tens of parallel RT-qPCR reactions. The simple and low-cost microfluidic cartridge developed here may find other applications in point-of-care diagnostics.
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27
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Bozza WP, Tolleson WH, Rivera Rosado LA, Zhang B. Ricin detection: Tracking active toxin. Biotechnol Adv 2015; 33:117-123. [DOI: 10.1016/j.biotechadv.2014.11.012] [Citation(s) in RCA: 66] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2014] [Revised: 10/22/2014] [Accepted: 11/30/2014] [Indexed: 12/11/2022]
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28
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Hu J, Ni P, Dai H, Sun Y, Wang Y, Jiang S, Li Z. A facile label-free colorimetric aptasensor for ricin based on the peroxidase-like activity of gold nanoparticles. RSC Adv 2015. [DOI: 10.1039/c4ra17327a] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
A facile colorimetric aptasensor for ricin based on the peroxidase-like activity of gold nanoparticles was demonstrated for the first time.
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Affiliation(s)
- Jingting Hu
- State Key Laboratory of Electroanalytical Chemistry
- Changchun Institute of Applied Chemistry
- Chinese Academy of Sciences
- Changchun
- PR China
| | - Pengjuan Ni
- State Key Laboratory of Electroanalytical Chemistry
- Changchun Institute of Applied Chemistry
- Chinese Academy of Sciences
- Changchun
- PR China
| | - Haichao Dai
- State Key Laboratory of Electroanalytical Chemistry
- Changchun Institute of Applied Chemistry
- Chinese Academy of Sciences
- Changchun
- PR China
| | - Yujing Sun
- State Key Laboratory of Electroanalytical Chemistry
- Changchun Institute of Applied Chemistry
- Chinese Academy of Sciences
- Changchun
- PR China
| | - Yilin Wang
- State Key Laboratory of Electroanalytical Chemistry
- Changchun Institute of Applied Chemistry
- Chinese Academy of Sciences
- Changchun
- PR China
| | - Shu Jiang
- State Key Laboratory of Electroanalytical Chemistry
- Changchun Institute of Applied Chemistry
- Chinese Academy of Sciences
- Changchun
- PR China
| | - Zhuang Li
- State Key Laboratory of Electroanalytical Chemistry
- Changchun Institute of Applied Chemistry
- Chinese Academy of Sciences
- Changchun
- PR China
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29
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Yao CY, Fu WL. Biosensors for hepatitis B virus detection. World J Gastroenterol 2014; 20:12485-12492. [PMID: 25253948 PMCID: PMC4168081 DOI: 10.3748/wjg.v20.i35.12485] [Citation(s) in RCA: 40] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/04/2014] [Revised: 03/01/2014] [Accepted: 04/16/2014] [Indexed: 02/06/2023] Open
Abstract
A biosensor is an analytical device used for the detection of analytes, which combines a biological component with a physicochemical detector. Recently, an increasing number of biosensors have been used in clinical research, for example, the blood glucose biosensor. This review focuses on the current state of biosensor research with respect to efficient, specific and rapid detection of hepatitis B virus (HBV). The biosensors developed based on different techniques, including optical methods (e.g., surface plasmon resonance), acoustic wave technologies (e.g., quartz crystal microbalance), electrochemistry (amperometry, voltammetry and impedance) and novel nanotechnology, are also discussed.
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30
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Tokel O, Inci F, Demirci U. Advances in plasmonic technologies for point of care applications. Chem Rev 2014; 114:5728-52. [PMID: 24745365 PMCID: PMC4086846 DOI: 10.1021/cr4000623] [Citation(s) in RCA: 221] [Impact Index Per Article: 22.1] [Reference Citation Analysis] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2013] [Indexed: 12/12/2022]
Affiliation(s)
- Onur Tokel
- Demirci
Bio-Acoustic-MEMS in Medicine (BAMM) Laboratory, Department of Medicine, Brigham and Women’s Hospital, Harvard Medical
School, Cambridge, Massachusetts 02139, United States
| | - Fatih Inci
- Demirci
Bio-Acoustic-MEMS in Medicine (BAMM) Laboratory, Department of Medicine, Brigham and Women’s Hospital, Harvard Medical
School, Cambridge, Massachusetts 02139, United States
- Demirci
Bio-Acoustic-MEMS in Medicine (BAMM) Laboratory, Stanford University School of Medicine, Canary Center at Stanford
for Cancer Early Detection, Palo
Alto, California 94304, United States
| | - Utkan Demirci
- Demirci
Bio-Acoustic-MEMS in Medicine (BAMM) Laboratory, Department of Medicine, Brigham and Women’s Hospital, Harvard Medical
School, Cambridge, Massachusetts 02139, United States
- Division of Infectious Diseases, Brigham
and Women’s Hospital, Harvard Medical
School, Boston, Massachusetts 02115, United States
- Harvard-MIT
Health Sciences and Technology, Cambridge, Massachusetts 02139, United States
- Demirci
Bio-Acoustic-MEMS in Medicine (BAMM) Laboratory, Stanford University School of Medicine, Canary Center at Stanford
for Cancer Early Detection, Palo
Alto, California 94304, United States
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31
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Yáñez-Sedeño P, Agüí L, Villalonga R, Pingarrón JM. Biosensors in forensic analysis. A review. Anal Chim Acta 2014; 823:1-19. [PMID: 24746348 DOI: 10.1016/j.aca.2014.03.011] [Citation(s) in RCA: 60] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2013] [Revised: 03/09/2014] [Accepted: 03/11/2014] [Indexed: 02/04/2023]
Abstract
Forensic analysis is an important branch of modern Analytical Chemistry with many legal and socially relevant implications. Biosensors can play an important role as efficient tools in this field considering their well known advantages of sensitivity, selectivity, easy functioning, affordability and capability of miniaturization and automation. This article reviews the latest advances in the use of biosensors for forensic analysis. The different methodologies for the transduction of the produced biological events are considered and the applications to forensic toxicological analysis, classified by the nature of the target analytes, as well as those related with chemical and biological weapons critically commented. The article provides several Tables where the more relevant analytical characteristics of the selected reported methods are gathered.
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Affiliation(s)
- P Yáñez-Sedeño
- University Complutense, Department of Analytical Chemistry, Faculty of Chemistry, Ciudad Universitaria, Madrid 28040, Spain.
| | - L Agüí
- University Complutense, Department of Analytical Chemistry, Faculty of Chemistry, Ciudad Universitaria, Madrid 28040, Spain
| | - R Villalonga
- University Complutense, Department of Analytical Chemistry, Faculty of Chemistry, Ciudad Universitaria, Madrid 28040, Spain
| | - J M Pingarrón
- University Complutense, Department of Analytical Chemistry, Faculty of Chemistry, Ciudad Universitaria, Madrid 28040, Spain
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32
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Hu J, Dai H, Sun Y, Ni P, Wang Y, Jiang S, Li Z. Highly sensitive and rapid visual detection of ricin using unmodified gold nanoparticle probes. RSC Adv 2014. [DOI: 10.1039/c4ra06001f] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
A sensitive aptamer-based colorimetric biosensor for the detection of ricin using unmodified gold nanoparticles as probe was developed.
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Affiliation(s)
- Jingting Hu
- State Key Laboratory of Electroanalytical Chemistry
- Changchun Institute of Applied Chemistry
- University of Chinese Academy of Sciences
- Changchun, PR China
- Graduate School of University of Chinese Academy of Sciences
| | - Haichao Dai
- State Key Laboratory of Electroanalytical Chemistry
- Changchun Institute of Applied Chemistry
- University of Chinese Academy of Sciences
- Changchun, PR China
- Graduate School of University of Chinese Academy of Sciences
| | - Yujing Sun
- State Key Laboratory of Electroanalytical Chemistry
- Changchun Institute of Applied Chemistry
- University of Chinese Academy of Sciences
- Changchun, PR China
| | - Pengjuan Ni
- State Key Laboratory of Electroanalytical Chemistry
- Changchun Institute of Applied Chemistry
- University of Chinese Academy of Sciences
- Changchun, PR China
- Graduate School of University of Chinese Academy of Sciences
| | - Yilin Wang
- State Key Laboratory of Electroanalytical Chemistry
- Changchun Institute of Applied Chemistry
- University of Chinese Academy of Sciences
- Changchun, PR China
- Graduate School of University of Chinese Academy of Sciences
| | - Shu Jiang
- State Key Laboratory of Electroanalytical Chemistry
- Changchun Institute of Applied Chemistry
- University of Chinese Academy of Sciences
- Changchun, PR China
- Graduate School of University of Chinese Academy of Sciences
| | - Zhuang Li
- State Key Laboratory of Electroanalytical Chemistry
- Changchun Institute of Applied Chemistry
- University of Chinese Academy of Sciences
- Changchun, PR China
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33
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Cho H, Jaworski J. A portable and chromogenic enzyme-based sensor for detection of abrin poisoning. Biosens Bioelectron 2013; 54:667-73. [PMID: 24334282 DOI: 10.1016/j.bios.2013.11.058] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2013] [Revised: 11/06/2013] [Accepted: 11/20/2013] [Indexed: 01/27/2023]
Abstract
A first of its kind portable, colorimetric detection system has been developed for the rapid diagnosis of abrin poisoning. Abrin, a natural biotoxin that is homologous to ricin yet more lethal, has high potential for becoming a weapon of bioterrorism given its ease of production. Using an immobilization strategy that implements non-natural amino acids for site-specific conjugation, we have created a reusable N-methyltryptophan oxidase based magnetic bead system that is capable of detecting L-abrine, a marker for abrin poisoning, at concentrations as low as 4 μM in mock urine. Furthermore, we propose that this detection strategy may be readily adaptable for sensing other targets of interest. This unique diagnostic test for abrin poisoning has demonstrated key benefits of portability and simple visual readout. These significant advantages can thus provide the potential for more rapid assessment and corresponding poison management if dedicated toxicology laboratories are not an option.
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Affiliation(s)
- Hwayoung Cho
- Department of Chemical Engineering, Hanyang University, 222 Wangsimni-ro, Seongdong-gu, Seoul 133-791, Republic of Korea; Institute of Nanoscience and Technology, Hanyang University, 222 Wangsimni-ro, Seongdong-gu, Seoul 133-791, Republic of Korea
| | - Justyn Jaworski
- Department of Chemical Engineering, Hanyang University, 222 Wangsimni-ro, Seongdong-gu, Seoul 133-791, Republic of Korea; Institute of Nanoscience and Technology, Hanyang University, 222 Wangsimni-ro, Seongdong-gu, Seoul 133-791, Republic of Korea.
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34
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Kumar S, Kumar S, Ali MA, Anand P, Agrawal VV, John R, Maji S, Malhotra BD. Microfluidic-integrated biosensors: Prospects for point-of-care diagnostics. Biotechnol J 2013; 8:1267-79. [DOI: 10.1002/biot.201200386] [Citation(s) in RCA: 122] [Impact Index Per Article: 11.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2013] [Revised: 06/02/2013] [Accepted: 07/18/2013] [Indexed: 11/10/2022]
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35
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Zhou C, Mu Y, Yang M, Song Q, Zhang Y, Wu Z, Xiang L, Jin W, Jin Q. A gravity-induced flow injection system for surface plasmon resonance biosensor. Talanta 2013; 112:95-100. [DOI: 10.1016/j.talanta.2013.03.037] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2012] [Revised: 03/10/2013] [Accepted: 03/14/2013] [Indexed: 12/11/2022]
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36
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Slotted photonic crystal sensors. SENSORS 2013; 13:3675-710. [PMID: 23503295 PMCID: PMC3658769 DOI: 10.3390/s130303675] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/05/2013] [Revised: 02/27/2013] [Accepted: 03/08/2013] [Indexed: 12/24/2022]
Abstract
Optical biosensors are increasingly being considered for lab-on-a-chip applications due to their benefits such as small size, biocompatibility, passive behaviour and lack of the need for fluorescent labels. The light guiding mechanisms used by many of them results in poor overlap of the optical field with the target molecules, reducing the maximum sensitivity achievable. This review article presents a new platform for optical biosensors, namely slotted photonic crystals, which provide higher sensitivities due to their ability to confine, spatially and temporally, the optical mode peak within the analyte itself. Loss measurements showed values comparable to standard photonic crystals, confirming their ability to be used in real devices. A novel resonant coupler was designed, simulated, and experimentally tested, and was found to perform better than other solutions within the literature. Combining with cavities, microfluidics and biological functionalization allowed proof-of-principle demonstrations of protein binding to be carried out. Higher sensitivities were observed in smaller structures than possible with most competing devices reported in the literature. This body of work presents slotted photonic crystals as a realistic platform for complete on-chip biosensing; addressing key design, performance and application issues, whilst also opening up exciting new ideas for future study.
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37
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Shia WW, Bailey RC. Single domain antibodies for the detection of ricin using silicon photonic microring resonator arrays. Anal Chem 2013; 85:805-10. [PMID: 23268548 PMCID: PMC3546499 DOI: 10.1021/ac3030416] [Citation(s) in RCA: 43] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
Abstract
Ricin is a lethal protein toxin derived from the castor bean plant. Given its notorious history as a biowarfare agent and homicidal weapon, ricin has been classified as a category B bioterrorism agent. Current ricin detection methods based on immunoassays lack the required sensitivity and specificity for many homeland security surveillance applications. Importantly, many conventional antibody-based methodologies are unable to distinguish ricin from RCA 120, a nontoxic protein also found in the castor bean plant. Single domain antibodies (sdAbs), which are recombinantly derived from immunized llamas, are known to have high affinities for ricin A or B chains and low cross-reactivity with RCA 120. Herein, we demonstrate the use of silicon photonic microring resonators for antibody affinity profiling and one-step ricin detection at concentrations down to 300 pM using a 15 min, label-free assay format. These sdAbs were also simultaneously compared with a commercial anti-RCA IgG antibody in a multicapture agent, single target immunoassay using arrays of microrings, which allowed direct comparison of sensitivity and specificity. A selected sdAb was also found to exhibit outstanding specificity against another biotoxin, saporin, which has mechanism of action similar to ricin. Given the rapidity, scalability, and multiplexing capability of this silicon-based technology, this work represents a step toward using microring resonator arrays for the sensitive and specific detection of biowarfare agents.
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Affiliation(s)
- Winnie W. Shia
- Department of Chemistry, University of Illinois at Urbana-Champaign, 600 S. Matthews Ave, Illinois, 61801
| | - Ryan C. Bailey
- Department of Chemistry, University of Illinois at Urbana-Champaign, 600 S. Matthews Ave, Illinois, 61801
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38
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Hemmi A, Mizumura R, Kawanishi R, Nakajima H, Zeng H, Uchiyama K, Kaneki N, Imato T. Development of a novel two dimensional surface plasmon resonance sensor using multiplied beam splitting optics. SENSORS 2013; 13:801-12. [PMID: 23299626 PMCID: PMC3574705 DOI: 10.3390/s130100801] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/18/2012] [Revised: 12/11/2012] [Accepted: 12/12/2012] [Indexed: 11/16/2022]
Abstract
A novel two dimensional surface plasmon resonance (SPR) sensor system with a multi-point sensing region is described. The use of multiplied beam splitting optics, as a core technology, permitted multi-point sensing to be achieved. This system was capable of simultaneously measuring nine sensing points. Calibration curves for sucrose obtained on nine sensing points were linear in the range of 0–10% with a correlation factor of 0.996–0.998 with a relative standard deviation of 0.090–4.0%. The detection limits defined as S/N = 3 were 1.98 × 10−6–3.91 × 10−5 RIU. This sensitivity is comparable to that of conventional SPR sensors.
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Affiliation(s)
- Akihide Hemmi
- Mebius Advanced Technology Ltd., 3-31-6-107 Nishiogi-kita, Suginami-ku, Tokyo 167-0042, Japan
- Department of Applied Chemistry, Graduate School of Engineering, Kyushu University, 744 Motooka, Nishi-ku, Fukuoka 819-0395, Japan
- Authors to whom correspondence should be addressed; E-Mails: (A.H.); (H.N.); (T.I.); Tel.: +81-3-5311-7328 (A.H.); Fax: +81-3-5311-7329 (A.H.); Tel./Fax: +81-42-677-2836 (H.N.); Tel./Fax: +81-92-802-2889 (T.I.)
| | - Ryosuke Mizumura
- Department of Applied Chemistry, Graduate School of Urban Environmental Sciences, Tokyo Metropolitan University, 1-1 Minamiohsawa, Hachioji, Tokyo 192-0397, Japan; E-Mails: (R.M.); (R.K.); (H.Z.); (K.U.)
| | - Ryuta Kawanishi
- Department of Applied Chemistry, Graduate School of Urban Environmental Sciences, Tokyo Metropolitan University, 1-1 Minamiohsawa, Hachioji, Tokyo 192-0397, Japan; E-Mails: (R.M.); (R.K.); (H.Z.); (K.U.)
| | - Hizuru Nakajima
- Department of Applied Chemistry, Graduate School of Urban Environmental Sciences, Tokyo Metropolitan University, 1-1 Minamiohsawa, Hachioji, Tokyo 192-0397, Japan; E-Mails: (R.M.); (R.K.); (H.Z.); (K.U.)
- Authors to whom correspondence should be addressed; E-Mails: (A.H.); (H.N.); (T.I.); Tel.: +81-3-5311-7328 (A.H.); Fax: +81-3-5311-7329 (A.H.); Tel./Fax: +81-42-677-2836 (H.N.); Tel./Fax: +81-92-802-2889 (T.I.)
| | - Hulie Zeng
- Department of Applied Chemistry, Graduate School of Urban Environmental Sciences, Tokyo Metropolitan University, 1-1 Minamiohsawa, Hachioji, Tokyo 192-0397, Japan; E-Mails: (R.M.); (R.K.); (H.Z.); (K.U.)
| | - Katsumi Uchiyama
- Department of Applied Chemistry, Graduate School of Urban Environmental Sciences, Tokyo Metropolitan University, 1-1 Minamiohsawa, Hachioji, Tokyo 192-0397, Japan; E-Mails: (R.M.); (R.K.); (H.Z.); (K.U.)
| | - Noriaki Kaneki
- College of Design and Manufacturing Technology, Graduate School of Engineering, Muroran Institute of Technology, 27-1 Mizumotocho, Muroran 050-8585, Japan; E-Mail:
| | - Toshihiko Imato
- Department of Applied Chemistry, Graduate School of Engineering, Kyushu University, 744 Motooka, Nishi-ku, Fukuoka 819-0395, Japan
- Authors to whom correspondence should be addressed; E-Mails: (A.H.); (H.N.); (T.I.); Tel.: +81-3-5311-7328 (A.H.); Fax: +81-3-5311-7329 (A.H.); Tel./Fax: +81-42-677-2836 (H.N.); Tel./Fax: +81-92-802-2889 (T.I.)
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39
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Šípová H, Homola J. Surface plasmon resonance sensing of nucleic acids: a review. Anal Chim Acta 2013; 773:9-23. [PMID: 23561902 DOI: 10.1016/j.aca.2012.12.040] [Citation(s) in RCA: 137] [Impact Index Per Article: 12.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2012] [Revised: 12/19/2012] [Accepted: 12/21/2012] [Indexed: 12/12/2022]
Abstract
Biosensors based on surface plasmon resonance (SPR) have become a central tool for the investigation and quantification of biomolecules and their interactions. Nucleic acids (NAs) play a vital role in numerous biological processes and therefore have been one of the major groups of biomolecules targeted by the SPR biosensors. This paper discusses the advances of NA SPR biosensor technology and reviews its applications both in the research of molecular interactions involving NAs (NA-NA, NA-protein, NA-small molecule), as well as for the field of bioanalytics in the areas of food safety, medical diagnosis and environmental monitoring.
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Affiliation(s)
- Hana Šípová
- Institute of Photonics and Electronics, Academy of Sciences of the Czech Republic, Chaberská 57, Prague, Czech Republic
| | - Jiří Homola
- Institute of Photonics and Electronics, Academy of Sciences of the Czech Republic, Chaberská 57, Prague, Czech Republic.
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40
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Ribeiro WF, da Costa DJE, Lourenço AS, Lopes IC, de Medeiros EP, Salazar-Banda GR, do Nascimento VB, de Araújo MCU. Electrochemical study of ricin at glassy carbon electrode. Analyst 2013; 138:4565-73. [DOI: 10.1039/c3an00227f] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
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41
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HUEBNER M, WUTZ K, SZKOLA A, NIESSNER R, SEIDEL M. A Glyco-chip for the Detection of Ricin by an Automated Chemiluminescence Read-out System. ANAL SCI 2013; 29:461-6. [DOI: 10.2116/analsci.29.461] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Affiliation(s)
- Maria HUEBNER
- Chair of Analytical Chemistry and Institute of Hydrochemistry, Technical University of Munich
| | - Klaus WUTZ
- Chair of Analytical Chemistry and Institute of Hydrochemistry, Technical University of Munich
| | - Agathe SZKOLA
- Chair of Analytical Chemistry and Institute of Hydrochemistry, Technical University of Munich
| | - Reinhard NIESSNER
- Chair of Analytical Chemistry and Institute of Hydrochemistry, Technical University of Munich
| | - Michael SEIDEL
- Chair of Analytical Chemistry and Institute of Hydrochemistry, Technical University of Munich
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42
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Lab-on-a-Chip, Micro- and Nanoscale Immunoassay Systems, and Microarrays. THE IMMUNOASSAY HANDBOOK 2013. [PMCID: PMC7152144 DOI: 10.1016/b978-0-08-097037-0.00013-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 03/29/2023]
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43
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Kirsch J, Siltanen C, Zhou Q, Revzin A, Simonian A. Biosensor technology: recent advances in threat agent detection and medicine. Chem Soc Rev 2013; 42:8733-68. [DOI: 10.1039/c3cs60141b] [Citation(s) in RCA: 313] [Impact Index Per Article: 28.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
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44
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Abstract
Nanomaterials have been widely developed for their use in nanomedicine, especially for immunoassay-based diagnosis. In this review we focus on the use of nanomaterials as a nanoplatform for colloidal immunoassays. While conventional heterogeneous immunoassays suffer from mass transfer limitations and consequently long assay time, colloidal immunosupports allow target capture in the entire volume, thus speeding up reaction kinetics and shortening assay time. Owing to their wide range of chemical and physical properties, nanomaterials are an interesting candidate for immunoassay development. The most popular colloidal nanomaterials for colloidal immunoassays will be discussed, as well as their influence on immune reactions. Recent advances in nanomaterial applications for different formats of immunoassays will be reported, such as nanomaterial-based indirect immunoassays, optical-based agglutination immunoassays, resonance energy transfer-based immunoassays and magnetic relaxation-based immunoassays. Finally, the future of using nanomaterials for homogeneous immunoassays dedicated to clinical diagnosis will be discussed.
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Affiliation(s)
- Bruno Teste
- Institut Curie/CNRS/UPMC UMR168, 26 Rue d’Ulm, 75005 Paris, France
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45
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Hentschel M, Schäferling M, Weiss T, Liu N, Giessen H. Three-dimensional chiral plasmonic oligomers. NANO LETTERS 2012; 12:2542-7. [PMID: 22458608 DOI: 10.1021/nl300769x] [Citation(s) in RCA: 166] [Impact Index Per Article: 13.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/20/2023]
Abstract
The living world is chiral. Chirality or the handedness of a structure or molecule is at the heart of life itself. Recently, it has been shown that plasmonic structures exhibit unprecedented and gigantic chiral optical responses. Here we show that truly three-dimensional arrangements of plasmonic "meta-atoms" only exhibit a chiral optical response if similar plasmonic "atoms" are arranged in a handed fashion as we require resonant plasmonic coupling. Moreover, we demonstrate that such particle groupings, similarly to molecular systems, possess the capability to encode their three-dimensional arrangement in unique and well-modulated spectra making them ideal candidates for a three-dimensional chiral plasmon ruler. Our results are crucial for the future design and improvement of plasmonic chiral optical systems, for example, for ultrasensitive enantiomer sensing on the single molecule level.
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Affiliation(s)
- Mario Hentschel
- 4th Physics Institute and Research Center SCoPE, University of Stuttgart, Pfaffenwaldring 57, D-70569 Stuttgart, Germany.
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46
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Brandon DL, Korn AM, Yang LL. Detection of Ricin Contamination in Liquid Egg by Electrochemiluminescence Immunosorbent Assay. J Food Sci 2012; 77:T83-8. [DOI: 10.1111/j.1750-3841.2012.02627.x] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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47
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Chuang TL, Wei SC, Lee SY, Lin CW. A polycarbonate based surface plasmon resonance sensing cartridge for high sensitivity HBV loop-mediated isothermal amplification. Biosens Bioelectron 2012; 32:89-95. [PMID: 22209071 PMCID: PMC7127281 DOI: 10.1016/j.bios.2011.11.037] [Citation(s) in RCA: 64] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2011] [Revised: 11/16/2011] [Accepted: 11/23/2011] [Indexed: 01/27/2023]
Abstract
In this study, we report a simple, low-cost surface plasmon resonance (SPR)-sensing cartridge based on a loop-mediated isothermal amplification (LAMP) method for the on-site detection of the hepatitis B virus (HBV). For LAMP detection, a SPR based LAMP sensing system (SPRLAMP) was constructed, including a novel SPRLAMP sensing cartridge integrating a polymethyl methacrylate (PMMA) micro-reactor with a polycarbonate (PC)-based prism coated with a 50 nm Au film. First, we found that the change of refractive index of the bulk solution was approximately 0.0011 refractive index (RI) units after LAMP reaction. The PC-based prism's linearity and thermal responses were compared to those of a traditional glass prism to show that a PC-based prism can be used for SPR measurement. Finally, the HBV template mixed in the 10 μl LAMP solution could be detected by SPRLAMP system in 17 min even at the detection-limited concentration of 2 fg/ml. We also analyzed the correlation coefficients between the initial concentrations of HBV DNA templates and the system response (ΔRU) at varying amplification times to establish an optimal amplification time endpoint of 25 min (R(2)=0.98). In conclusion, the LAMP reaction could be detected with the SPRLAMP sensing cartridge based on direct sensing of the bulk refractive index.
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Affiliation(s)
- Tsung-Liang Chuang
- Institute of Biomedical Engineering, National Taiwan University, Taipei, Taiwan, ROC
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48
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McGrath TF, Elliott CT, Fodey TL. Biosensors for the analysis of microbiological and chemical contaminants in food. Anal Bioanal Chem 2012; 403:75-92. [PMID: 22278073 DOI: 10.1007/s00216-011-5685-9] [Citation(s) in RCA: 60] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2011] [Revised: 11/17/2011] [Accepted: 12/19/2011] [Indexed: 10/14/2022]
Abstract
Increases in food production and the ever-present threat of food contamination from microbiological and chemical sources have led the food industry and regulators to pursue rapid, inexpensive methods of analysis to safeguard the health and safety of the consumer. Although sophisticated techniques such as chromatography and spectrometry provide more accurate and conclusive results, screening tests allow a much higher throughput of samples at a lower cost and with less operator training, so larger numbers of samples can be analysed. Biosensors combine a biological recognition element (enzyme, antibody, receptor) with a transducer to produce a measurable signal proportional to the extent of interaction between the recognition element and the analyte. The different uses of the biosensing instrumentation available today are extremely varied, with food analysis as an emerging and growing application. The advantages offered by biosensors over other screening methods such as radioimmunoassay, enzyme-linked immunosorbent assay, fluorescence immunoassay and luminescence immunoassay, with respect to food analysis, include automation, improved reproducibility, speed of analysis and real-time analysis. This article will provide a brief footing in history before reviewing the latest developments in biosensor applications for analysis of food contaminants (January 2007 to December 2010), focusing on the detection of pathogens, toxins, pesticides and veterinary drug residues by biosensors, with emphasis on articles showing data in food matrices. The main areas of development common to these groups of contaminants include multiplexing, the ability to simultaneously analyse a sample for more than one contaminant and portability. Biosensors currently have an important role in food safety; further advances in the technology, reagents and sample handling will surely reinforce this position.
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Affiliation(s)
- T F McGrath
- ASSET Technology Centre, Institute of Agri-Food and Land Use, School of Biological Sciences, Queen's University Belfast, Belfast, UK.
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49
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Park MK, Oh JH. Rapid detection of E. coli O157:H7 on turnip greens using a modified gold biosensor combined with light microscopic imaging system. J Food Sci 2012; 77:M127-34. [PMID: 22251215 DOI: 10.1111/j.1750-3841.2011.02537.x] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
This research aims to demonstrate the feasibility of a modified gold biosensor to detect E. coli O157:H7 in leafy turnip greens. The gold biosensor was modified with dithiobis-succinimidyl propionate (DSP) and/or protein A or G. The gold biosensor modified with DSP (Gold-DSP) was combined with a light microscopic imaging system (LMIS). The optimal concentration and specificity of anti-E. coli O15 polyclonal antibodies (pAbs) on the biosensor were determined. The reliability of Gold-DSP biosensor was investigated by determining the sensitivity, specificity, and limit of detection (LOD) of the Gold-DSP combined with LMIS. The Gold-DSP combined with LMIS was applied to turnip greens for E. coli O157:H7 detection. The modification of Gold biosensor with DSP significantly increased the detected number of E. coli O157:H7. The specificity of pAbs was sufficient to react with target E. coli O157:H7 among the tested bacterial culture. The optimum concentration of pAbs was determined as 200 μg/mL. The sensitivity, specificity, and LOD of Gold-DSP combined with LMIS were determined as 100%, 90%, and 10(3) CFU/25 mm(2) , respectively. When applied to turnip greens, the Gold-DSP combined with LMIS could detect 2641 ± 394 and 15383 ± 3853 cell/mm(2) with the initial concentrations of 10(1) and 10(2) CFU/25 g turnip greens, respectively, after 10 h-enrichment. Overall, this research suggested that the Gold-DSP combined with LMIS could be used to detect E. coli O157:H7 on turnip greens qualitatively and quantitatively.
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Affiliation(s)
- Mi-Kyung Park
- Materials Research and Education Center, Auburn Univ, 275 Wilmore Labs, Auburn, AL 36830, USA
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50
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Understanding ricin from a defensive viewpoint. Toxins (Basel) 2011; 3:1373-92. [PMID: 22174975 PMCID: PMC3237001 DOI: 10.3390/toxins3111373] [Citation(s) in RCA: 45] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2011] [Revised: 10/13/2011] [Accepted: 10/14/2011] [Indexed: 11/17/2022] Open
Abstract
The toxin ricin has long been understood to have potential for criminal activity and there has been concern that it might be used as a mass-scale weapon on a military basis for at least two decades. Currently, the focus has extended to encompass terrorist activities using ricin to disrupt every day activities on a smaller scale. Whichever scenario is considered, there are features in common which need to be understood; these include the knowledge of the toxicity from ricin poisoning by the likely routes, methods for the detection of ricin in relevant materials and approaches to making an early diagnosis of ricin poisoning, in order to take therapeutic steps to mitigate the toxicity. This article will review the current situation regarding each of these stages in our collective understanding of ricin and how to defend against its use by an aggressor.
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